Patent DE-102009053205-A1 (DE)
Title: Device for introducing dried substrate in a container, which is formed as fermenter of a biogas plant or as intermediate container, comprises a conveyor unit having a conveyor screw coupled with a drive unit in drive-technical manner
Inventor: HEINRICHS ANDREAS
IPC: C12M1/107
Filed: 2009-11-06
Abstract: The device for the introduction of dried substrate in a container (26), which is formed as fermenter of a biogas plant or as intermediate container, comprises a conveyor unit (14) having a conveyor screw that is coupled with a drive unit (11) in drive-technical manner, an anti-reverse mechanism (19) coupled with a conveyor unit, and a housing body. The conveyor screw is surrounded by a conveyor housing (17) so that the substrate moves in rotation of the conveyor screw along the conveyor unit. The anti-reverse mechanism has no movable part. The device for the introduction of dried substrate in a container (26), which is formed as fermenter of a biogas plant or as intermediate container, comprises a conveyor unit (14) having a conveyor screw that is coupled with a drive unit (11) in drive-technical manner, an anti-reverse mechanism (19) coupled with a conveyor unit, and a housing body. The conveyor screw is surrounded by a conveyor housing (17) so that the substrate moves in rotation of the conveyor screw along the conveyor unit. The anti-reverse mechanism has no movable part, where a reverse flow of the substrate is blocked from the container through the conveyor unit during turn off the drive unit. The anti-reverse mechanism is formed in such a way that it forms the substrate to a dried, bar-shaped- and plug-shaped structure, which is formed within the anti-reverse mechanism in conveying direction as movable plug in such a way that the substrate forms the blockage of recirculation stream. The anti-reverse mechanism is formed as module of the introduction device as module construction. The individual modules such as drive unit, conveyor unit, the anti-reverse mechanism and if necessary a barrier device are equipped with flanges and are connected to each other. The anti-reverse mechanisms are formed with conveyor units in flow direction and/or conveyor direction and are formed from tube sections. The anti-reverse mechanism is arranged downstream to the conveyor unit and is connected with a connection of fermenter. The tubular section has a constant interior cross-section opening along the flow direction, or the interior cross-section opening conically extends in flow direction, or the anti-reverse mechanism has interior cross-section enlarging tubular section extending itself in flow direction. The conveyor housing and the anti-reverse mechanism consist of building units. The interior opening surface of the conveyor housing and the conveyor screw continuously rejuvenate itself along the rotation axis of the conveyor shaft, and/or the conveyor shaft is continuously formed in flow direction. The interior mantle surfaces of the conveyor housing are provided with profiles, blocks, rails or cutting section that extends itself in longitudinal direction of the conveyor housing parallel to the middle axis of the conveyor shaft, which protrudes towards interior into the conveyor housing. The conveyor housing and/or the anti-reverse mechanism have sections that are arranged as cylindrical-, conical- and/or level sections. The conveyor screw is formed as wave-less, screw-forming spiral or as conveyor screw according to a type of a screw thread and is tightly connected with the conveyor shaft. The anti-reverse mechanism is arranged downstream to an element unit, which receives the substrate brought in the fermenter or in the container and distributes in the interior of the fermenter or the container.